Inch / Nylon Insert (Inch) Aztech Locknut Company > Core Products > Inch > Nylon Insert (Inch) Flange Nut Ideal when assembling components that consist of thin materials, slots or non-precision oversize holes. Full Hex NE Nut Is commonly used in many general purpose applications Jam Hex Nut Less damaging to mating threads, but have lower heat limitations and over time the nylon develops memory and prevailing torque erodes. Heavy and Thick Hex NU Less damaging to mating threads, but have lower heat limitations. Heavy Jam Hex NTU Demands a greater across flats to increase wrench or drive socket grip Small Hex NM & Machine Screw NTM Common small dimension nylon insert products, with the NTM the thinner variant Acorn NKM & NKE Used for either decorative purposes and/or to protect from scratches when surfaces would otherwise encounter exposed screw threads Wing Nut WCA Commonly used on equipment access panels or adjustments where the task may be completed without tools.